Researchers from the University of Electronic Science and Technology of China and Nanyang Technological University in Singapore have successfully created an electromagnetic vortex cannon using coaxial horn antennas. The device produces air vortices with remarkable resilience and self-healing properties, showcasing complex topological f...
A team of scientists has successfully established the first intercity quantum key distribution experiment using semiconductor quantum dots as single-photon sources. This breakthrough enables fast and stable transmission of secret keys over long distances, paving the way for a secure 'quantum internet'.
Researchers developed a high-quality transferred barium titanate ferroelectric hybrid integrated modulator on silicon, overcoming limitations in light modulation. The new method enables optimized thickness and rotation angle to enhance EO modulation efficiency, achieving V π L as low as 1.67 V˜m.
Researchers have developed a novel deconvolution method called multi-resolution analysis (MRA) that improves image quality without introducing artifacts, allowing for high-fidelity imaging of cells and their processes. The approach capitalizes on the physical properties of excited fluorophores to distinguish useful signals from noise.
Researchers developed a new phase characterization method for metalenses based on multi-distance phase retrieval through optical field scanning. This innovative approach overcomes traditional interferometric techniques' limitations, enabling the measurement of phase distributions and wavefront errors with higher accuracy.
Researchers develop a general strategy for fabricating vertically stacked skin-like active-matrix displays, eliminating obstacles in existing parallel structures. This approach enables the creation of high-quality AMOLEDs with ultrahigh aperture ratios and improved resolution.
Scientists have developed a UCNPs/Cu x OS@ZIF nanocomposite probe for in vitro H2S sensing and in vivo imaging. The probe uses a zeolitic framework to selectively detect H2S, eliminating interference from other molecules.
A pyramid-structured diffractive optical network has been developed to achieve unidirectional image magnification and demagnification. The system uses successive transmissive layers optimized through deep learning to perform computational tasks in an all-optical manner.
A new mixed physical node reservoir computing system uses artificial light-emitting synapses to effectively extract spatiotemporal characteristics of input signals. The device achieves over 97% recognition accuracy in image classification tasks and improves multi-channel image recognition from 93.16% to 99.25%.
A new quantum light source has been developed that generates exceptionally bright, entangled photons, paving the way for more efficient and secure quantum networks. This breakthrough technology promises to revolutionize various fields, including ultra-secure communication and unbreakable encryption.
A review article discusses optimization algorithms for computer-generated holography (CGH), improving hologram reconstructing accuracy. Non-convex optimization methods are applied to seek optimal solutions, addressing the ill-posed inverse problem in CGH.
Researchers create a new yellow-green luminescent material to address growing industrial demand for brighter afterglow. They successfully apply an electric field stimulation method, increasing the initial luminance of the SrAl2O4:Eu2+,Dy3+ phosphor and demonstrating its potential for high brightness long afterglow emission.
Researchers developed a microscopic theory for ultrafast stimulated Raman spectroscopy with quantum-light fields, enabling high-speed imaging of molecules. The technique leverages the quantum advantages of entangled photon sources to enhance both temporal and spectral resolution.
A new method combines machine vision, deep learning, and nonlinear conversion to increase information capacity in machine learning-based ultra-accurate information networks. The system can achieve low bit error rates and high data recognition accuracy even with complex light fields.
The study compares simpler-to-implement nonlinear encoding strategies with the performance of data repetition-based methods, revealing that data repetition enhances inference accuracy but compromises universal linear transformation capability. Phase encoding without data repetition offers a simpler alternative with comparable inference...
Researchers have developed a novel time-of-flight resolved stimulated Raman scattering microscopy that uses counter-propagating ultraslow Bessel light bullets for deeper tissue imaging. The technique offers high spatial resolution and improved penetration depth without the need for mechanical z-scanning.
Researchers developed CECEM spectroscopy to measure chirality's 'handedness', which affects biological molecule function. The technique offers high spectral resolution, saving time and reducing errors in chiroptical analysis.
This breakthrough enables generation and manipulation of light with both spin and orbital angular momentum at terahertz frequencies. The new technique holds promise for advancing terahertz technologies in fields like spectroscopy, sensing, and communication.
Scientists develop stable and efficient hybrid light-emitting diodes combining perovskite and organic technologies. The new LEDs boast a narrow emission spectrum, high luminance, and an operational half-lifetime exceeding 42,000 hours.
Scientists have developed a new technique to create four-dimensional qudits that can transmit more data in a single go, promising a future quantum internet with faster data transfer rates and increased resistance to errors.
Scientists develop effective approach to enhance EL efficiency and color purity of hyperfluorescence OLEDs using blue MR-TADF emitters. By separating TADF sensitizer and emitter into adjacent layers, they achieve outstanding external quantum efficiencies of up to 38.8%.
Researchers developed a new material that combines quantum dots with blue phase liquid crystal elastomers (BPLCE), enabling visualized full-color circularly polarized luminescence (CPL) with a record-breaking g_lum value of up to 0.74. The material's CPL signal is mechanically switchable, meaning it can be turned on and off by applying...
Researchers developed EventLFM, a novel ultrafast 3D imaging technique that integrates an event camera with Fourier light field microscopy to capture dynamic biological processes at kHz speeds. The technique was demonstrated in experiments capturing complex dynamics of rapidly moving 3D objects and imaging high-frequency blinking objects.
A new type of imager has been created that can capture features smaller than half the wavelength of light using solid-immersion diffractive encoding. The imager has a compact design and can directly perform quantitative phase retrieval without computer processing.
Scientists have developed a quasicrystal metasurface that projects holographic images and creates unique diffraction patterns. This innovative design simplifies device design and offers precise control over light manipulation, paving the way for high-resolution thin holographic displays, ultra-fast light-switching devices, and advanced...
Scientists have successfully created an optical analog of the Kármán vortex street (KVS), a classical flow pattern of swirling vortices. The optical KVS pulse exhibits fascinating parallels with fluid transport, allowing for potential applications in metrology, telecommunications, and LiDAR.
Researchers developed a laser-based 3D printing method to fabricate high-quality micro-spheres for enhanced optical resolution. The new approach enabled the creation of a micro-sphere with near-perfect geometric quality and exceptional surface smoothness.
Researchers develop ultrafast wavemeter based on multimode and multicore fibers, enabling high-speed wavelength measurements. The new method achieves a spectral measurement speed of 100MHz while maintaining a high resolution of 2.7pm.
Researchers developed an all-optical complex field imaging technique that captures both amplitude and phase information using intensity-based sensor arrays. This innovation simplifies the imaging process, reducing hardware footprint and energy consumption.
Researchers developed a new type of hologram, 'metahologram', that can project multiple high-fidelity images without crosstalk. This breakthrough enables next-generation technologies like virtual/augmented reality displays, information storage, and image encryption.
A team of scientists has created the world's strongest terahertz fields, achieving a peak intensity of 9 x 10¹³ W/cm². This breakthrough enables novel nonlinear terahertz-matter interactions and opens up new opportunities for studying plasmas and utilizing terahertz-driven forces.
Scientists have developed a method for achieving omnidirectional wavelength control, enabling simultaneous and multidirectional structural color tuning with highly flexible wavelength control. This breakthrough innovation promises to revolutionize tunable photonic applications, including electronic skin and optical sensing.
A team of scientists has reported a novel structure for developing high-performance crystalline white OLEDs by employing thermally activated delayed fluorescence (TADF) material and orange phosphorescent dopants. This approach enables controlled luminescence behavior, efficient charge carrier transport channels, and reduced device cond...
Researchers have developed a system for microtoroid optical resonators using far-field excitation, achieving ultra-high quality factors over 10^8. This enables compact and cost-effective biochemical sensing, surpassing tapered fiber-based couplers.
Researchers create cutting-edge all-optical single-shot probing technique to capture target dynamics from cold solid to overdense plasma. The new method provides unprecedented insight into interplay of fundamental processes such as ionization dynamics and plasma hydrodynamic expansion.
Researchers have developed a method that enhances efficiency and speed of nonlinear optical signal processing (NOSP) using parity-time symmetry. This approach enables high-speed data processing exceeding 38 gigabits per second, reducing power consumption and increasing network capacity.
Researchers have introduced a new form of quantum entanglement in the frequency domain, enabling double resolution in two-photon interference. This advancement sets the stage for future applications in quantum information processing and technologies.
Scientists have developed strong-field photoelectron holography to visualize electron dynamics within molecules, revealing details of internuclear separation and atomic behavior.
A new paper demonstrates a low-loss and polarization-independent integrated optical colorless ROADM with a 32 x 4 optical switch. The device boasts below 2 dB fiber-to-fiber loss at 1550 nm, making it suitable for applications such as optical neural networks and integrated quantum photonics.
Researchers developed a novel technique to visualize meningeal lymphatic vessels in vivo using photoacoustic microscopy. The study revealed that these vessels play a crucial role in regulating cerebrospinal fluid circulation and clearing metabolic waste from the brain, which is impaired in early stages of Alzheimer's disease.
Researchers have demonstrated a novel approach to actively manipulate light using ferroionic 2D materials. These devices exhibit exceptional modulation efficiency and low optical losses, enabling applications in telecommunications, neuromorphic computing, and beyond.
Scientists have introduced a groundbreaking form of quantum entanglement, enabling double resolution in two-photon interference. This innovation uses a frequency beam splitter to alter individual photons' frequencies with high success rates.
Researchers have achieved a significant breakthrough in surface-emitting semiconductor laser efficiency using multi-junction cascaded active area technology. The new design strategy increases gain volume, enhancing differential quantum efficiency and maintaining lower threshold current.
Researchers achieve tunable ultrafast laser state active controlling by utilizing anisotropic quasi-1D material Ta2PdS6. The material enables the sustainment of two distinct laser states: conventional soliton (CS) and noise-like pulse (NLP). Numerical simulation reveals the mechanism behind the switchable laser state.
A team of scientists has achieved a breakthrough in measuring the 3D density profile of laser wakefield accelerated electron bunches, revealing a transverse size of less than 30 micrometers and a peak current exceeding 1 kiloampere. This detection opens new avenues for future applications in accelerator science and beyond.
A novel photonic computing architecture has been developed for tens-of-task lifelong learning, surpassing existing electronic neural networks in capacity and energy efficiency. The L2 ONN demonstrates extraordinary learning capability on challenging tasks, such as vision classification and medical diagnosis.
Scientists developed Te-based THz modulators with improved modulation depth and speed, overcoming the tradeoff between the two. The stacking order of materials significantly impacts the modulation property, which can be regulated through substrate engineering.
A team of scientists developed a photonic scheme to extract key features from broadband RF signals, reducing data rate by 4 times while maintaining high target recognition accuracy. The system achieves 97.5% accuracy and outperforms one-dimensional feature extraction.
A new type of optical neural network has been developed, exhibiting a quantum speedup similar to quantum neural networks. The network uses classical optical correlations as a carrier of information, allowing for efficient processing and convergence speed.
Researchers observe superfluorescence effect for the first time and control collective state of dipole ensemble using new regulatory dimension. They demonstrate cooperative exciton-polariton condensation with enhanced coupling strength, enabling potential applications for ultra-narrow tunable lasers and optoelectronic devices.